PT 58 S1 Q14

Theater managers will not rent a film if they do notbelieve it will generate ... ...

Which one of the following is an assumption required by the argument?
(A) Adults consume less of the sort of foods and beverages sold at movie concession stands than do either children or adolescents.
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Complete Section: LR-A, Sept. '09 LSAT (PT 58 Sec. 1)